“频率标准”的概念、定义、翻译、参考文献-科学参考

单词	频率标准
释义	频率标准 Encyclopedia 工学频率标准释 frequency standard频率标准能独立工作的，且能给出较高准确度的单一频率值的正弦信号的装置。简称频标。理学〔原子物理应用〕释 frequency standards频率标准用信号频率相当准确和单一的正弦振荡信号发生器确定频率的计量。 Physics 光学、声学光学 frequency standard频标全称“频率标准”。＞原子与分子物理学＞冷原子分子物理＞释义 frequency standard频[率]标[准] Astronomy frequency standard频率标准
随便看	safety of nuclear weapon safety of oil and gas pipeline emergency repair safety of oil and gas pipeline maintenance safety of oil and gas testing safety of oil production downhole operation safety of oxygen systems safety of plate shears safety of pressure casting safety of railway traffic safety of sand falling cleaning operation safety of sand mixing operation safety of special equipment supervision and management safety of stamping machinery safety of transgenic medicinal resourses safety of wood planer safety of woodworking machinery safety operation of civil engineering system safety operation of crane safety operation regulation safety paper safety pedagogy safety performance safety performance evaluation safety period of fertility alteration safety pharmacology

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。